I suspect you may have been too aggressive in topping off the tank. Gasoline expands with temperature. We're transitioning into warmer days. The gasoline you pumped was probably chilled from being in the cold ground after this brutal winter. Once it warmed up in your tank it expanded and may have worked its way into the vapor collection system.

Someone told me long ago that fuel injected cars should not be topped off. When you fill up and the hose clicks off, just round up to the nearest quarter if you're paying cash....especially true if you'll just go home and park the car.